Misacanthus 'Gracillimus'
Sedum 'Autumn Fire'
Helenium autumnale (Sneezeweed)
Caryopteris 'Sunshine Blue'
Anemone 'September Charm'
Hydrangea 'Little Lime'
I actually remembered on the 15th this month. Of course, there isn't a whole lot blooming right now so I apologize in advance for any disappointment: